def main():
    X=int(input())
    if 400<=X<=599:
        print(8)
    elif 600<=X<=799:
        print(7)
    elif 800<=X<=999:
        print(6)
    elif 1000<=X<=1199:
        print(5)
    elif 1200<=X<=1399:
        print(4)
    elif 1400<=X<=1599:
        print(3)
    elif 1600<=X<=1799:
        print(2)
    else:
        print(1)
if __name__=='__main__':
    main() def main():
    X=int(input())
    if 400<=X<=599:
        print(8)
    elif 600<=X<=799:
        print(7)
    elif 800<=X<=999:
        print(6)
    elif 1000<=X<=1199:
        print(5)
    elif 1200<=X<=1399:
        print(4)
    elif 1400<=X<=1599:
        print(3)
    elif 1600<=X<=1799:
        print(2)
    else:
        print(1) main X=int(input()) X int(input()) int input() input if 400<=X<=599:
        print(8)
    elif 600<=X<=799:
        print(7)
    elif 800<=X<=999:
        print(6)
    elif 1000<=X<=1199:
        print(5)
    elif 1200<=X<=1399:
        print(4)
    elif 1400<=X<=1599:
        print(3)
    elif 1600<=X<=1799:
        print(2)
    else:
        print(1) 400<=X<=599 400<=X 400 X 599 print(8) print 8 elif 600<=X<=799:
        print(7)
     600<=X<=799 600<=X 600 X 799 print(7) print 7 elif 800<=X<=999:
        print(6)
     800<=X<=999 800<=X 800 X 999 print(6) print 6 elif 1000<=X<=1199:
        print(5)
     1000<=X<=1199 1000<=X 1000 X 1199 print(5) print 5 elif 1200<=X<=1399:
        print(4)
     1200<=X<=1399 1200<=X 1200 X 1399 print(4) print 4 elif 1400<=X<=1599:
        print(3)
     1400<=X<=1599 1400<=X 1400 X 1599 print(3) print 3 elif 1600<=X<=1799:
        print(2)
     1600<=X<=1799 1600<=X 1600 X 1799 print(2) print 2 print(1) print 1 if __name__=='__main__':
    main() __name__=='__main__' __name__ '__main__' main() main def main():
    X=int(input())
    if 400<=X<=599:
        print(8)
    elif 600<=X<=799:
        print(7)
    elif 800<=X<=999:
        print(6)
    elif 1000<=X<=1199:
        print(5)
    elif 1200<=X<=1399:
        print(4)
    elif 1400<=X<=1599:
        print(3)
    elif 1600<=X<=1799:
        print(2)
    else:
        print(1) def main():
    X=int(input())
    if 400<=X<=599:
        print(8)
    elif 600<=X<=799:
        print(7)
    elif 800<=X<=999:
        print(6)
    elif 1000<=X<=1199:
        print(5)
    elif 1200<=X<=1399:
        print(4)
    elif 1400<=X<=1599:
        print(3)
    elif 1600<=X<=1799:
        print(2)
    else:
        print(1) main
def main():
    X=int(input())
    if 400<=X<=599:
        print(8)
    elif 600<=X<=799:
        print(7)
    elif 800<=X<=999:
        print(6)
    elif 1000<=X<=1199:
        print(5)
    elif 1200<=X<=1399:
        print(4)
    elif 1400<=X<=1599:
        print(3)
    elif 1600<=X<=1799:
        print(2)
    else:
        print(1)
if __name__=='__main__':
    main()